The chain is the crucial element that drives the rest of your drivetrain.

Who needs a chain?

All conventional bikes have a chain and they don’t last forever. You will need to replace your chain if it breaks or if a chain checking tool shows it’s too worn.

What are the choices?

Chain choice can be bewildering – it’s crucial you get the right chain width for your bike. Most chains don’t list the width, instead stating the type of cassette it’s suitable for e.g. eight-speed or 11-speed. Some will list the width, though, such as 3/32in.